<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  
</head>
<body>
  <div id="app">
    <div class="floor" v-for="(floor,index) in floors">
      <h5>
        {{floor.title}}
      </h5>
      <ul>
        <li v-for="(item,index2) in floor.items">
          <h6>{{item.name}} => 第{{index+1}}楼 第 {{index2+1}}个商品</h6>
          <p>{{item.price}}</p>
        </li>
      </ul>
    </div>
  </div>
  <script src="./vue.js"></script>
  <script>
    const vm = new Vue({
      el: '#app',
      data: {
        floors: [
          {
            title: '手机',
            items: [
              {
                name: '商品1',
                price: 11
              },
              {
                name: '商品2',
                price: 22
              },
              {
                name: '商品3',
                price: 33
              },
              {
                name: '商品4',
                price: 44
              }
            ]
          },
          {
            title: '电脑',
            items: [
              {
                name: '商品1',
                price: 11
              },
              {
                name: '商品2',
                price: 22
              },
              {
                name: '商品3',
                price: 33
              },
              {
                name: '商品4',
                price: 44
              }
            ]
          },
          {
            title: '家电',
            items: [
              {
                name: '商品1',
                price: 11
              },
              {
                name: '商品2',
                price: 22
              },
              {
                name: '商品3',
                price: 33
              },
              {
                name: '商品4',
                price: 44
              }
            ]
          }
        ]
      }
    })
  </script>
</body>
</html>